Small dev here, sharing what we've been building. It's a 3D runner on rails (Three.js, plain JS) that doubles as a German vocabulary trainer: a word appears on your train, three tracks carry possible meanings, and you switch onto the right one.

The ride goes through real German states and towns (Kiel to Munich), with tickets and power-ups on the line, a postcard for each landmark, daily and all-time leaderboards by distance, and a streak bonus for riding on consecutive days. Free, no account, works on phones.

Would love feedback on the feel and the controls.